Insulating composition, insulated plenum cable and methods for making same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5614319
SERIAL NO

08435870

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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There is disclosed an insulating composition comprising a mixture of a polyolefin, such as polyethylene or polypropylene, and a partially fluorinated copolymer such as ethylene-chlorotrifluoroethylene (ECTFE) or ethylene-trifluoroethylene (ETFE) in an amount from about 3.0% to about 50% by weight polyolefin. Such mixture may be used as either a solid or foamed insulation over a metallic conductor in a plenum-type communications cable. Such an insulation has been found to have improved mechanical and electrical properties over insulations consisting of 100% ECTFE or ETFE. Specifically, the insulation exhibits improved elongation performance and lower dielectric constant and dissipation factor values. These insulated wires may be used in the transmission of electronic signals, such as voice, data or video, and possess unique properties in electrical, fire safety and cost performance. The insulated cable is made by extruding a mixture of the polyolefin and partially fluorinated copolymer, such as ETFE or ECTFE, onto a metal conductor wire. Additional flame retardants, compatabilizing agents and processing aids may also be added to the mixture. If a foamed insulation is desired, a suitable nucleator and blowing agent may be added.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COMMSCOPE, INC. OF NORTH CAROLINAHICKORY, NC546

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Craton, Gary Catawba County, NC 1 35
Soundararajan, Neeli Catawba County, NC 1 35
Wessels, Rob Catawba County, NC 4 95

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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RAYCHEM CORPORATION, A CORPORATION OF DELAWARE (1)
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Allied-Signal Inc. (1)
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Comm/Scope (1)
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UNION CARBIDE CORPORATION (1)
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ASAHI KASEI KABUSHIKI KAISHA (1)
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SOLVAY SOLEXIS, INC. (2)
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U.S. Borax Inc. (1)
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AUSIMONT USA, INC. (1)
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KYOWA CHEMICAL INDUSTRY CO., LTD. (1)
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
* 2004/0208,812 Method for making high thermal diffusivity boron nitride powders 7 2004
* 2005/0045,364 Coaxial cables, multicore cables, and electronic apparatuses using such cables 0 2004
* 2007/0237,955 Hydrofluorocarbon polymer compositions for scrape abrasion resistant articles 2 2007
 
E. I. DU PONT DE NEMOURS AND COMPANY (1)
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COMMSCOPE TECHNOLOGIES LLC (20)
7214884 Cable with offset filler 22 2003
7115815 Cable utilizing varying lay length mechanisms to minimize alien crosstalk 28 2003
* 2005/0092,515 Cable with offset filler 50 2003
* 2005/0092,514 Cable utilizing varying lay length mechanisms to minimize alien crosstalk 26 2003
7220918 Cable with offset filler 11 2005
7220919 Cable with offset filler 4 2005
* 2005/0205,289 Cable with offset filler 9 2005
* 2005/0167,151 Cable with offset filler 10 2005
7329815 Cable with offset filler 76 2005
* 2005/0247,479 Cable with offset filler 6 2005
* 2005/0279,528 Cable utilizing varying lay length mechanisms to minimize alien crosstalk 13 2005
7375284 Multi-pair cable with varying lay length 11 2006
* 2007/0295,526 MULTI-PAIR CABLE WITH VARYING LAY LENGTH 4 2006
7498518 Cable with offset filler 9 2006
* 2007/0102,189 Cable with offset filler 1 2006
7550676 Multi-pair cable with varying lay length 3 2008
* 2008/0283,274 MULTI-PAIR CABLE WITH VARYING LAY LENGTH 2 2008
7875800 Cable with offset filler 0 2009
8375694 Cable with offset filler 1 2011
9142335 Cable with offset filler 0 2013
 
SAINT-GOBAIN CERAMICS & PLASTICS, INC. (10)
7662324 Polymer processing aid and method for processing polymers 4 2002
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7189774 Method for making high thermal diffusivity boron nitride powders 10 2004
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RE45923 High solids HBN slurry, HBN paste, spherical HBN powder, and methods of making and using them 0 2005
7914886 Structural component comprising boron nitride agglomerated powder 3 2008
* 2009/0071,695 BORON NITRIDE AGGLOMERATED POWDER 0 2008
RE45803 High solids HBN slurry, HBN paste, spherical HBN powder, and methods of making and using them 0 2009
8169767 Boron nitride agglomerated powder and devices comprising the powder 3 2011
 
MITSUBISHI CABLE INDUSTRIES, LTD. (1)
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SUMITOMO ELECTRIC INDUSTRIES, LTD. (2)
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7034228 Coaxial cables, multicore cables, and electronic apparatuses using such cables 9 2004
 
MILLIKEN & COMPANY (1)
9376558 Polymer compositions, articles made from such compositons, and methods for molding such compositions 0 2010
 
SOLVAY SPECIALTY POLYMERS ITALY S.P.A. (1)
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SOLVAY SOLEXIS S.P.A. (2)
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CABLE COMPONENTS GROUP, LLC (1)
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TIMES MICROWAVE SYSTEMS, DIVISION OF SMITHS AEROSPACE, INCORPORATED (1)
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COMMSCOPE, INC. OF NORTH CAROLINA (4)
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B.N. Custom Cables Canada Inc. (1)
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ROCKBESTOS SURPRENANT CABLE CORP. (1)
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DAIKIN INDUSTRIES, LTD. (2)
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* Cited By Examiner